Initially, this would either be a defective LCD panel or its interface. A way to verify is to play the portable DVD using an external video monitor such as your TV. If still gray or blue screen (no video) even in the TV/monitor, then it would be the video interface/circuitry. If the video is displayed, then it would just be the LCD panel display.
If it turns out to be the LCD display, it is very possible that it is a backlighting issue. Most likely, it would be in the inverter and/or CCF (cold cathode florescent) lamps. This is a relatively easy repair by re-soldering. It is perhaps more of a task to open the panel lid/cover of the LCD display.
This of course would require a fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron. It would be to your added advantage access to a service manual or at the very least a schematic diagram with voltage readings. Should you be uncomfortable performing a DIY (do-it-yourself), perhaps your best bet would then be to seek the services of a qualified professional.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards. Thank you for using FixYa.
Answers & Comments
Hi,
Initially, this would either be a defective LCD panel or its interface. A way to verify is to play the portable DVD using an external video monitor such as your TV. If still gray or blue screen (no video) even in the TV/monitor, then it would be the video interface/circuitry. If the video is displayed, then it would just be the LCD panel display.
If it turns out to be the LCD display, it is very possible that it is a backlighting issue. Most likely, it would be in the inverter and/or CCF (cold cathode florescent) lamps. This is a relatively easy repair by re-soldering. It is perhaps more of a task to open the panel lid/cover of the LCD display.
This of course would require a fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron. It would be to your added advantage access to a service manual or at the very least a schematic diagram with voltage readings. Should you be uncomfortable performing a DIY (do-it-yourself), perhaps your best bet would then be to seek the services of a qualified professional.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards. Thank you for using FixYa.
One screen is white with an ! symbol the other screen is working fine